We consider the cosmological evolution of a brane for general bulk matter content. In our setup the bulk pressure and the energy exchange densities are comparable to the brane energy density. Adopting a phenomenological fluid ansatz and generalizations of it, we derive a set of exact solutions of the Friedmann equation that exhibit accelerated expansion. We find that the effective equation of state parameter for the dark energy can exhibit w = - 1 crossing without the presence of exotic matter. © 2007 Elsevier B.V. All rights reserved.
Bogdanos, C., & Tamvakis, K. (2007). Brane cosmological evolution with bulk matter. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 646(1), 39–46. https://doi.org/10.1016/j.physletb.2007.01.009